Group IV: Polyalphaolefins (PAO's) are made by combining 2 to more decene molecules into an oligomer, a short-chain-length polymer.

聚（包）的合2更癸分子成低聚，短长链聚合。

Results indicate interestingly that the double bond of GMA polymerized with polystyryl carbanion and the molar ratio of epoxy end group and polystyrene oligomer can be adjusted.

在GMA与聚苯乙烯离子反应的过程中，GMA在活性种的终端发生了聚合，所中环氧端基与聚合的摩尔比可根据需要进行调节。